Carbon dioxide detector



FIG. 1 is a front, right, and top perspective view of a carbon dioxide detector, showing my design.

FIG. 2 is a rear, right, and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a partial enlarged view of an area labeled 9 in FIG. 2 comprising a foot.

The dash-dash broken lines in the drawings depict portions of the carbon dioxide detector that form no part of the claimed design. The dot-dash broken lines represent of the enlarged portions and form no part of the claimed design. 

CLAIM The ornamental design for a carbon dioxide detector, as shown and described. 